Across Australia and New Zealand, water and wastewater utilities are under growing pressure. Ageing infrastructure, tighter budgets, rising energy costs, and stricter regulations mean operators must keep pumps running reliably while also protecting workers and meeting sustainability goals. Traditional maintenance approaches—manual packing adjustments or full pump tear-downs for seal changes—are costly, risky, and inefficient.
The Challenges of Traditional Pump Maintenance
Conventional methods like gland packing have been used for over a century, but they demand constant adjustment and always allow some level of leakage. Left unchecked, that leakage accelerates equipment wear, contaminates bearings, and even raises environmental concerns when wastewater or hazardous liquids are involved. On the other hand, replacing standard mechanical seals can mean extensive disassembly—removing motors, couplings, and heavy pump components—introducing manual handling risks and extending downtime.
Utilities are seeking smarter ways forward: technologies that remove operators from danger zones, reduce leakage, and extend the service life of critical assets.
Three Innovations Driving Change
Chesterton’s research and field experience highlight three powerful strategies for modernising pump maintenance:
- Split Mechanical Seals – These allow installation without dismantling pumps. By clamping around the shaft, they cut downtime from days to hours while eliminating the hazards of live adjustments. They also help prevent leakage of raw sewage or process fluids, aiding compliance and safety.
- Automated Mechanical Packing Systems (AMPS™) – For pumps that must stay packed, AMPS ensures constant gland pressure via pneumatic actuators. This “active loading” reduces leakage, extends packing life, and lets operators make adjustments remotely—keeping them out of the “line of fire”.
- Protective Coatings – Epoxy and ceramic coatings restore efficiency to worn pump internals and protect against corrosion. Australian utilities report efficiency gains of up to 6% and extended service intervals when using coatings as part of rebuilds.
Why This Matters
Together, these technologies address the three biggest pain points in pump maintenance: downtime, safety, and efficiency. By adopting smarter sealing and coating solutions, utilities can:
- Return pumps to service faster
- Minimise operator exposure to hazards
- Cut water and energy waste
- Extend asset life and defer costly replacements
A Strategic Path Forward
For utilities facing the dual challenge of operational reliability and sustainability, these solutions offer a compelling roadmap. The combination of split seals, automated packing, and protective coatings not only delivers measurable cost savings but also supports compliance with environmental and safety standards.
👉 Want to Dive Deeper?
Download the full white paper “Smarter, Safer Strategies for Pump Maintenance: Reducing Risk and Boosting Efficiency” to explore detailed case studies and actionable recommendations.
